JPH0297132A - Diversity reception system - Google Patents
Diversity reception systemInfo
- Publication number
- JPH0297132A JPH0297132A JP63249010A JP24901088A JPH0297132A JP H0297132 A JPH0297132 A JP H0297132A JP 63249010 A JP63249010 A JP 63249010A JP 24901088 A JP24901088 A JP 24901088A JP H0297132 A JPH0297132 A JP H0297132A
- Authority
- JP
- Japan
- Prior art keywords
- receiver
- receiving
- diversity reception
- duplexer
- reception
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012544 monitoring process Methods 0.000 claims description 19
- 230000007547 defect Effects 0.000 claims description 2
- 230000005856 abnormality Effects 0.000 abstract description 5
- 230000007257 malfunction Effects 0.000 abstract description 3
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000011056 performance test Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
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- Radio Transmission System (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、自動車電話基地局等における受信性能を向
上するダイバーシチ受信システムに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a diversity reception system that improves reception performance in a mobile phone base station or the like.
（従来の技術〕
第５図は従来のダイバーシチ受信システムのブロック図
であり、図において、１は第１の受信共用機、２は第２
の受信共用機、３は上記第１の受信共用機１からの信号
が入力される複数の第１の受信機、４は上記第２の受信
共用機２からの信号が入力される複数の第２の受信機、
５は第１．第２の受信共用機１，２の状態を監視する監
視部、６は第１．第２の受信機４，５の状態を監視、制
御する制御部、７は監視部５と制御部６とを結ぶシリア
ル回線、８は第１．第２の受信共用機１゜２の受信アン
テナである。(Prior Art) FIG. 5 is a block diagram of a conventional diversity reception system. In the figure, 1 is a first receiving duplexer, 2 is a second
3 is a plurality of first receivers to which the signal from the first receiver duplexer 1 is input, 4 is a plurality of receivers to which the signal from the second receiver duplexer 2 is input. 2 receivers,
5 is the first. A monitoring unit 6 monitors the status of the second shared receivers 1 and 2. A control section monitors and controls the states of the second receivers 4 and 5; 7 is a serial line connecting the monitoring section 5 and the control section 6; 8 is a serial line connecting the first receiver 4 and the second receiver 5; This is the receiving antenna of the second receiving duplexer 1°2.
次に動作について説明する。まず、図示しない送信局か
ら送信された情報の入力信号は、受信アンテナ８から第
１の受信共用機１に入り、使用する第１の受信機３の数
に分割される。一方、第２の受信共用機２からの入力信
号も、同様に第２の受信機４の数に分割される。この場
合において、制御部６は第１の受信機３と第２の受信機
４の信号レベルを比較して、性能の良い方の第１の受信
機３または第２の受信機４を選択する。Next, the operation will be explained. First, an input signal of information transmitted from a transmitting station (not shown) enters the first receiving duplexer 1 from the receiving antenna 8 and is divided into the number of first receivers 3 to be used. On the other hand, the input signal from the second dual receiver 2 is similarly divided into the number of second receivers 4. In this case, the control unit 6 compares the signal levels of the first receiver 3 and the second receiver 4 and selects the first receiver 3 or the second receiver 4 with better performance. .
また、第１の受信共用機１および第２の受信共用機２の
いずれかに支障があって欠けた場合には。Also, if either the first dual-receiver device 1 or the second dual-receiver device 2 is damaged due to a problem.
監視部５はこれを検出し、これら第１．第２の受信共用
機１，２のうちの支障がないものだけを正常動作させる
ように動作する。しかし、制御部６は出力信号レベルの
性能がよい方の受信系統の第１の受信機３または第２の
受信機４を選択し続ける。The monitoring unit 5 detects this, and the first . It operates so that only one of the second shared receivers 1 and 2 that has no problem operates normally. However, the control unit 6 continues to select the first receiver 3 or the second receiver 4 of the receiving system with better output signal level performance.
従来のダイバーシチ受信システムは以上のように構成さ
れているので、上記支障によって第１゜第２の受信共用
機１，２のいずれか１方が欠けた場合には、第１．第２
の受信共用機１，２の他方のみが正常動作し、ダイバー
シチ受信を継続し続けて、制御部６は出力信号レベルの
性能がよい方の受信機３および４の一方を選択し続ける
ので。Since the conventional diversity reception system is configured as described above, if one of the first and second receiving duplexers 1 and 2 is missing due to the above-mentioned trouble, the first and second receiving duplexers 1 and 2 are damaged. Second
Only the other of the receiving duplexers 1 and 2 operates normally and continues to perform diversity reception, and the control section 6 continues to select one of the receivers 3 and 4 with the better output signal level performance.
欠けた受信系統の雑音の程度によっては、制御部６や受
信機３，４が誤動作してしまうなどの問題点があった。Depending on the degree of noise in the missing reception system, there have been problems such as the control unit 6 and the receivers 3 and 4 malfunctioning.
この発明は上記のような問題点を解消するためになされ
たもので１通常は受信２系統の第１．第２の受信共用機
によりダイバーシチ受信できるとともに、受信２系統の
１つに支障が生じた場合は、ダイバーシチ受信を停止さ
せて、雑音による制御部６や第１．第２の受信機３，４
の誤動作を防止できるダイバーシチ受信システムを得る
ことを目的とする。This invention was made to solve the above-mentioned problems. 1. Normally, the first receiving system has two receiving systems. Diversity reception is possible using the second shared receiver, and if a problem occurs in one of the two receiving systems, diversity reception is stopped and the control unit 6 or the first... second receiver 3,4
The purpose of this invention is to obtain a diversity reception system that can prevent malfunctions.
この発明に係るダイバーシチ受信システムは、送信局か
らの情報を受信する第１の受信共用機および第２の受信
共用機と、これらの支障による欠けを監視する監視部と
を有し、この監視部の監視結果に従って、制御部により
、正常な受信系統である上記第１の受信共用機、第２の
受信共用機にそれぞれ接続された第１の受信機および／
または第２の受信機を、選択的に動作させるようにした
ものである。A diversity receiving system according to the present invention includes a first receiving duplexer and a second receiving duplexer that receive information from a transmitting station, and a monitoring section that monitors gaps due to interferences in these devices. According to the monitoring result, the control unit controls the first receiver and/or which are respectively connected to the first receiving duplexer and the second receiving duplexer which are normal receiving systems.
Alternatively, the second receiver is selectively operated.
この発明における監視部は、第１の受信共用機および第
２の受信共用機から１例えば別途用意した信号線を通じ
て、これらの支障による欠けの情報を取り込み、この情
報に従って上記各受信共用機ごとの第１．第２の受信機
の一方および／または他方を選択的に動作可能にする。The monitoring unit according to the present invention takes in information about defects caused by these troubles from the first dual-reception device and the second dual-reception device, for example, through a separately prepared signal line, and according to this information, the monitoring unit monitors each of the dual-reception devices for each of the dual-reception devices. 1st. Selectively enabling one and/or the other of the second receivers.
以下、この発明の一実施例を図について説明する。第１
図において、１１は第１の受信共用機、１２は第２の受
信共用機、１３は第１の受信共用機１１の信号が入力さ
れる第１の受信機、１４は第２の受信共用機１２の信号
が入力される第２の受信機、１５は受信共用機１１．１
２の支障による欠けを監視する監視部、１６は第１の受
信機１３および第２の受信機１４の動作を監視制御する
制御部、１７は監視部１５と制御部１６との間の、デー
タ送受のためのシリアル回線、１８は上記第１、第２の
受信共用機１１．１２が接続されているかどうかを、つ
まり各受信共用機１１．１２の欠けの情報を監視部１５
へ伝える信号線、１９は第１．第２の受信共用機１１．
１２が故障した場合に監視部１５ヘアラーム信号を伝え
るアラームラインである。また、２１は受信アンテナで
ある。An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, 11 is a first receiver duplexer, 12 is a second receiver duplexer, 13 is a first receiver into which the signal of the first receiver duplexer 11 is input, and 14 is a second receiver duplexer. 12 is a second receiver into which signals are input, 15 is a reception duplexer 11.1
16 is a control unit that monitors and controls the operations of the first receiver 13 and the second receiver 14; 17 is a data link between the monitor 15 and the control unit 16; A serial line 18 for transmission and reception is a monitoring unit 15 that checks whether the first and second dual-receiver devices 11.12 are connected, that is, information on the lack of each dual-receiver device 11.12.
The signal line 19 transmits to the first. Second reception duplex device 11.
This is an alarm line that transmits an alarm signal to the monitoring unit 15 when the unit 12 is out of order. Further, 21 is a receiving antenna.
なお、第１の受信機１３、第２の受信機１４および制御
部１６はその１組を１つのチャンネルとして、チャンネ
ルＣＨＩ〜ＣＨｎの０組分並設されている。Note that the first receiver 13, the second receiver 14, and the control unit 16 are arranged in parallel for 0 sets of channels CHI to CHn, with each set as one channel.
次に動作について説明する。Next, the operation will be explained.
この実施例において、ダイバーシチ受信を行う基本動作
は、従来と同じであるので、ここでは、その重複する説
明を省略する。すなわち、この実施例では、監視部１５
と第１．第２の受信共用機１１．１２とが、これらの欠
けの情報を伝える各１の信号線１８によってそれぞれ接
続されており、さらに、その信号線１８は各受信共用機
１１，１２内で一端が接地されている。従って、監視部
１５はその信号線１８の電位を検出することによって、
第１．第２の受信共用機１１．１２が支障により接続さ
れていないこと、すなわち、これらの第１．第２の受信
共用機１１．１２の欠けを検出する。この監視部１５に
よる欠けの検出は、この監視部１５に設けたマイクロプ
ロセッサにより、第２図に示す処理フローに従って行わ
れる。これによれば、まず、第１の受信共用機１１が有
るか欠けているかを判定する（ステップ５ＴＩ）、この
判定の結果、有る場合には、続いて第２の受信共用機１
２が有るか否かを判定しくステップ５Ｔ２）、有る場合
には、第１．第２の受信共用機１１．１２が共に欠けな
し、つまり有りの信号を制御部１６へ出力する。また、
ステップＳＴ２で、第２の受信共用機１２が欠けている
と判定された場合には、第１の受信共用機１１のみ有り
の信号を出力する。一方、ステップＳＴＩで、第１の受
信共用機１１が欠けと判定された場合において、さらに
第２の受信共用機１２が有ると判定された場合には（ス
テップ５Ｔ３）、第２の受信共用機１２のみ有りの信号
が出力される。そして、ステップＳＴ３で第２の受信共
用機１２が欠けと判定された場合には、何らの信号も出
力しない。In this embodiment, the basic operation for performing diversity reception is the same as the conventional one, so a redundant explanation thereof will be omitted here. That is, in this embodiment, the monitoring unit 15
and 1st. The second duplex receivers 11 and 12 are connected to each other by one signal line 18 that conveys the information about these gaps, and furthermore, one end of each signal line 18 is connected to the second duplex receiver 11 and 12. Grounded. Therefore, by detecting the potential of the signal line 18, the monitoring unit 15
1st. The second receiving duplexers 11 and 12 are not connected due to a problem, that is, these first... A chipping of the second receiving duplex device 11, 12 is detected. The chipping detection by the monitoring section 15 is performed by a microprocessor provided in the monitoring section 15 according to the processing flow shown in FIG. According to this, first, it is determined whether the first receiving duplexer 11 is present or missing (step 5TI), and as a result of this determination, if the first receiving duplexer 11 is present, then the second receiving duplexer 11 is
In step 5T2), it is determined whether the first. The second receiving duplexers 11 and 12 both output signals indicating that there is no chipping, that is, there is a chipping, to the control unit 16. Also,
If it is determined in step ST2 that the second duplex receiver 12 is missing, a signal indicating that only the first duplex receiver 11 is present is output. On the other hand, when it is determined in step STI that the first receiving duplexer 11 is missing, and it is further determined that the second receiving duplexer 12 is present (step 5T3), the second receiving duplexer 11 is missing. A signal with only 12 is output. If it is determined in step ST3 that the second duplex receiver 12 is missing, no signal is output.
従って、各制御部１６のマイクロプロセッサ（図示しな
い）は、これら４種類の信号を、シリアル回線１７を通
じて受は取り、各信号を復号して、第１の受信機１３お
よび第２の受信機１４を選択的に動作可能にする０例え
ば第１の受信共用機１１のみ有りの信号を受は取った場
合には常に第１の受信機１３のみ選択し、第１．第２の
受信共用機１１．１２共に有りの信号を受は取った場合
にはダイバーシチ受信を実行する。Therefore, the microprocessor (not shown) of each control unit 16 receives these four types of signals through the serial line 17, decodes each signal, and sends the signals to the first receiver 13 and the second receiver 14. For example, if a signal indicating that only the first receiver 11 is available is received, only the first receiver 13 is selected and the first receiver 13 is selectively enabled. When both the second reception duplexers 11 and 12 receive a yes signal, diversity reception is performed.
なお、上記実施例では、第１．第２の受信共用機１１．
１２の欠けを、各受信共用機１１．１２と監視部１５と
の間に信号線１８を追加する。ことにより認識していた
が、第３図に示すように、監視部１５自体に切換スイッ
チ２０を設けて、これのオン、オフにより各受信共用機
１１．１２の欠けを認識するようにしてもよい。Note that in the above embodiment, the first. Second reception duplex device 11.
12, a signal line 18 is added between each receiving duplex device 11, 12 and the monitoring unit 15. However, as shown in FIG. 3, even if a changeover switch 20 is provided in the monitoring unit 15 itself, and the chipping of each receiver unit 11 and 12 is recognized by turning it on and off. good.
また、これらの切換スイッチ２ｏを設けることにより、
各受信共用機１１．１２まで信号線８を設けずに手元で
切り換えができるため、ダイバーシチ受信の場合には、
この切換スイッチ２ｏをオン状態にして使用でき、一方
、各受信共用機１１゜１２の性能試験を行う場合には、
オフとすることができる。この場合において、この性能
試験の終了後は、必ず切換スイッチ２０をオンに切り戻
しておく必要がある。In addition, by providing these changeover switches 2o,
In the case of diversity reception, it is possible to switch between each receiving unit 11 and 12 at hand without installing the signal line 8.
It can be used with this selector switch 2o in the ON state.On the other hand, when performing a performance test of each receiving unit 11 and 12,
Can be turned off. In this case, it is necessary to turn the changeover switch 20 back on after completing this performance test.
また、上記実施例では、第１．第２の受信共用機１１．
１２の欠けによりダイバーシチ受信を行うか否かの制御
を行っていたが、第４図に示す回路により、各受信共用
機１１．１２から得られるアラーム信号の有無により、
ダイバーシチ受信を行うか否かの制御を行ってもよい。Further, in the above embodiment, the first. Second reception duplex device 11.
12 was used to control whether or not to perform diversity reception, but the circuit shown in FIG.
It may also be possible to control whether or not to perform diversity reception.
この場合において、アラームライン１９は各受信共用機
１１．１２内部の回路に接続されていて。In this case, the alarm line 19 is connected to a circuit inside each duplex receiver 11.12.
ハードウェアに何らかの異常が生じた場合に、このアラ
ームライン１９を通じてアラーム信号を伝達する。すな
わち、上記異常がない場合には、ダイバーシチ受信を可
能にし、異常があった場合には、正常な一方の受信共用
機１１または１２を選択する。If any abnormality occurs in the hardware, an alarm signal is transmitted through this alarm line 19. That is, when there is no abnormality, diversity reception is enabled, and when there is an abnormality, one of the normal receiving duplexers 11 or 12 is selected.
以上のように、この発明によれば受信２系統のうち１系
統に支障が生じた場合は、ダイバーシチ受信をできない
ように構成したので、雑音による制御部や受信機の誤動
作を未然に防止することができるので、受信精度の高い
ものが得られる効果がある。As described above, according to the present invention, diversity reception is not possible if one of the two reception systems has a problem, so malfunctions of the control unit and receiver due to noise can be prevented. This has the effect of providing high reception accuracy.
第１図はこの発明の一実施例によるダイバーシチ受信シ
ステムのブロック図、第２図はこの発明によるダイバー
シチ受信動作を説明する処理フロー図、第３図および第
４図は受信共用機の欠けを検出する回路の要部を示すブ
ロック図、第５図は従来のダイバーシチ受信システムの
ブロック図である。
１１は第１の受信共用機、１２は第２の受信共用機、１
３は第１の受信機、１４は第２の受信機。
１５は監視部、１６は制御部。
なお、図中、同一符号は同一、又は相当部分を示す。
特許出願人 三菱電機株式会社
１６：’ｉｊ’Ｊ慴Ｐ四
第３図
第４図
１１２１！１Fig. 1 is a block diagram of a diversity reception system according to an embodiment of the present invention, Fig. 2 is a processing flow diagram explaining the diversity reception operation according to the invention, and Figs. FIG. 5 is a block diagram of a conventional diversity receiving system. 11 is a first receiving duplex device, 12 is a second receiving duplex device, 1
3 is a first receiver, and 14 is a second receiver. 15 is a monitoring section, and 16 is a control section. In addition, in the figures, the same reference numerals indicate the same or equivalent parts. Patent applicant Mitsubishi Electric Corporation 16: 'ij' J H P4 Figure 3 Figure 4 1121!1
Claims (1)
用機および第２の受信共用機と、これらの第１の受信共
用機および第２の受信共用機の支障による欠けを監視す
る監視部と、上記第１の受信共用機から上記情報を受け
る第１の受信機と、上記第２の受信共用機から上記情報
を受ける第２の受信機と、上記監視部の監視結果に従っ
て正常な受信系統の上記第１の受信機および／または第
２の受信機を動作させる制御部とを備えたダイバーシチ
受信システム。A first receiving duplexer and a second receiving duplexer of two receiving systems that receive information from a transmitting station, and a monitoring system that monitors the first receiving duplexer and the second receiving duplexer for defects due to interference. a first receiver that receives the information from the first dual-receiver, a second receiver that receives the information from the second dual-receiver, and a normal receiver according to the monitoring results of the monitoring unit. A diversity reception system comprising: a control unit that operates the first receiver and/or the second receiver of the reception system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63249010A JPH0297132A (en) | 1988-10-04 | 1988-10-04 | Diversity reception system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63249010A JPH0297132A (en) | 1988-10-04 | 1988-10-04 | Diversity reception system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0297132A true JPH0297132A (en) | 1990-04-09 |
Family
ID=17186667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63249010A Pending JPH0297132A (en) | 1988-10-04 | 1988-10-04 | Diversity reception system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0297132A (en) |
-
1988
- 1988-10-04 JP JP63249010A patent/JPH0297132A/en active Pending
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